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Finding the Fourth Proportional to 560,043.82, 840,345.96 and 256,437.34

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Solution

The fourth proportional to 560,043.82, 840,345.96 and 256,437.34 is: 384,784.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,043.82 : 840,345.96 = 256,437.34 : x
  2. Step 2: Convert to fraction form
    560,043.82/840,345.96 = 256,437.34/x
  3. Step 3: Cross multiply
    560,043.82x = 840,345.96 × 256,437.34
  4. Step 4: Simplify right side
    560,043.82x = 215,496,082,662.15
  5. Step 5: Solve for x
    x = 215,496,082,662.15/560,043.82
  6. Step 6: Final answer
    x = 384,784.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.